<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>简介</title>
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-base.css" />
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-medium.css" />

 </head>
 <body class="docs"><div class="navbar navbar-fixed-top">
  <div class="navbar-inner clearfix">
    <ul class="nav" style="width: 100%">
      <li style="float: left;"><a href="book.math.html">« Math</a></li>
      <li style="float: right;"><a href="math.setup.html">安装/配置 »</a></li>
    </ul>
  </div>
</div>
<div id="breadcrumbs" class="clearfix">
  <ul class="breadcrumbs-container">
    <li><a href="index.html">PHP Manual</a></li>
    <li><a href="book.math.html">Math</a></li>
    <li>简介</li>
  </ul>
</div>
<div id="layout">
  <div id="layout-content"><div id="intro.math" class="preface">
  <h1 class="title">简介</h1>
  <p class="para">
   这些数学函数将只处理 <span class="type">int</span> 和 <span class="type">float</span> 类型范围内的值。要处理更大的数字，请查看<a href="book.bc.html" class="link">任意精度数学函数</a>或 <a href="book.gmp.html" class="link">GNU 多精度函数</a>。
  </p>

  <div class="section">
   <h2 class="title">参见</h2>
   <p class="para">
    <ul class="simplelist">
     <li class="member">
      <a href="language.operators.arithmetic.html" class="link">算术运算符</a>
     </li>
     <li class="member">
      <a href="book.bc.html" class="link">任意精度数学函数</a>
     </li>
     <li class="member">
      <a href="book.gmp.html" class="link">GNU 多精度函数</a>
     </li>
    </ul>
   </p>
  </div>
 </div></div></div></body></html>